Improvement in hose-couplings



UNITED STATES PATENT OFFICE. y

THOMAS WILSON AND LUOIUS B. KENDALL, OF KALAMAZOO, MICHIGAN.

IMPROVEMENT IN HOSE-COUPLINGS.

Specification forming part of Letters Patent No. 139,223, dated May 20, 1873 application iled April 2, 1873.

To all whom it may concern:

Be it known that we, THOMAS WILSON and LUcIUs B. KENDALL, of Kalamazoo, in the county ot' Kalamazoo and State of Michigan, have invented a new and useful Improvement in Hose-Oouplin gs and we do declare that the following is a true and accurate description thereof, reference being' had to the accompanying drawing and to the letters of reference marked thereon and being a part of this speciiication, in'which- Figure l is a longitudinal section of a pair of our improved couplings coupled. Fig. 3 is an elevation of the face ofthe coupling. Fig. 2 is a side elevation of the Valve in a coupling. Y

Like letters refer to like parts in each gure.

The nature of this invention relates to an improved form of coupling for joining lengths of hose together, wherein leakage is prevent- `ed by the compression of gaskets between the couplings.

The invention consists in the peculiar construction of a pair of facecouplings, which may be locked and 'compressed together by cams or eccentric levers; also, in providing each butt with a peculiar valve, so arranged that when said butts are coupled together the said valves will be open from their seats, and

` permit the flow ot' air or iiuid through the line of hose, While as soon as the butts are uncoupled the valves will automatically close and prevent the escape oi air or duid from either section of hose.

In the drawing, A represents a butt or coupling, provided with a corrugated tail-piece, A', on which the end ofthe hose is bound. There are two lugs, a af, projecting laterally at opposite sides of the end ofthe butt. To the lug aa link, B, is pivoted at each side thereof is turned, which receives a rubber ring or gasket, D, which projects beyond the general plane of the butt. E is a valve-disk, which is secured by a screw-nut to the inner end of a valve-cylinder, F, which plays in an annular bearing formed by the bore of the coup ling, which is enlarged behind the seat of the valve E. rlhe outer end ot' the cylinder F has an outward iiange, which limits the backward movement of the valve E from its seat. A series ot' openings is made through the wall of the cylinder as near the valve E as is practicable.

When two such couplings are brought together, the dowel of the one entering the dowel-socket of the other, and vice versa, brings their faces into the proper juxtaposition, so that the links of the one, with the cam-lever raised, as in Fig. 2, may be thrown f over the stud a of the other', and vice versa, when, it the levers C be thrown down to the position shown in Fig. 1, their cams acting upon the back edges of the opposing studs, the couplings will be drawn forcibly together', and so compress the gaskets D that no` leakage can occur between their faces. When the couplings are brought together the meeting ends of the cylinders F force each other 1 back, removing the valves E from their seats. while the openings e are at the same time disclosed, thereby leaving the air or iinid free to iow through from one section of the hose to the other. ternal pressure in either section thereof will seat the valve E and prevent the escape of air or duid.

What we claim as our invention, and desire to secure by Letters Patent, is I The described coupling, consisting essen-` tially of the parts A, having recesses for the gasket D and united by links B,and` eccentric lever O, in combination with the cylinder F, having the apertures e, as described,for the purpose setforth.

THOMAS WILSON. LUGIUS B. KEN DALL. Witnesses:

AMos D. ALLEN, H. J. BROWNELL.

If the hose be uncoupled, any in` 

